单项选择题
A. responsible B. take charge of C. in charge of D. control
（）(舵角多少)？ ----Twenty degrees on port.A. How answer...
单项选择题（）(舵角多少)？ ----Twenty degrees on port.
A. How answers B. What rudder C. How rudder D.B+C
（）（尾推）stop。A. Bow thrustB. Bow thrusterC. Stern thrustD...
单项选择题（）（尾推）stop。
A. Bow thrust B. Bow thruster C. Stern thrust D. Stern thruster
（）（首推）stop.A. Bow thrustB. Bow thrusterC. Stern thrustD...
单项选择题（）（首推）stop.
